Home / 28,717.13-43,104.86-18,161.21

Finding the Fourth Proportional to 28,717.13, 43,104.86 and 18,161.21

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Solution

The fourth proportional to 28,717.13, 43,104.86 and 18,161.21 is: 27,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.13 : 43,104.86 = 18,161.21 : x
  2. Step 2: Convert to fraction form
    28,717.13/43,104.86 = 18,161.21/x
  3. Step 3: Cross multiply
    28,717.13x = 43,104.86 × 18,161.21
  4. Step 4: Simplify right side
    28,717.13x = 782,836,499.54
  5. Step 5: Solve for x
    x = 782,836,499.54/28,717.13
  6. Step 6: Final answer
    x = 27,260.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.